Objective:

To develop a new LC method that addresses updated German soil regulations for the analysis of explosives, specifically targeting newly regulated compounds.

Key Findings:

• The new method successfully separates structurally similar explosives using the right stationary phase, improving detection capabilities.
• The selected pH 3 potassium phosphate buffer prevents decomposition of tetryl during analysis, ensuring accurate results.
• The method allows for the analysis of compounds not covered by established methods like the EPA method, filling a critical gap in regulatory compliance.

Interpretation:

The developed workflow significantly improves the efficiency and accuracy of explosives analysis in compliance with new regulations, particularly benefiting contract analytics labs by streamlining their processes.

Limitations:

• The study primarily focuses on the German soil regulations and may not address other regional requirements, suggesting a need for broader applicability studies.
• Potential limitations in the method's applicability to other types of samples beyond soil, indicating areas for future research.

Conclusion:

The new LC method provides a reliable and efficient solution for analyzing explosives in soil, aligning with updated regulatory requirements and enhancing laboratory workflows.